{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10514",
    "entityType": "User",
    "nonce": "0x14b61890d5ec00fa6b9b4ef4ca6b9910fe1a93505ac5b2b27669d29e7c2a4837",
    "signature": "0x8dfe4ce94205f1bc15bad91666753575db6074ba8c2d52d7aeee4f897da883807289e8d6a9bc2d9ab22d6ec5d8c79eaaa1369492a857cdc6c5fde6d0163893171c",
    "signer": "0xE0B1Cd7F7124071739f50a64A1Fa3E5EE57a7108",
    "userId": "766053366"
  }
}